Code & Text Tools
Developer utilities for character encoding, ASCII reference and text transformation. Instant results with clear, practical references.
Available tools
What each tool does
| Tool | What you solve |
|---|---|
| ASCII Table & Converter | Full ASCII reference 0-127 with decimal, hex, binary and HTML entity columns. Filter by character type; convert text to codes and back. |
| Extended ASCII 128-255 | Character table for codes 128-255: decimal, hex, Unicode codepoint, HTML entity and description. Covers Windows-1252 (128-159) and Latin-1 Supplement (160-255). Click any row to copy the character. |
Start with the ASCII Table for standard codes 0-127. Switch to the Extended ASCII reference when you encounter bytes above 127, which is common in Windows-1252 encoded files, legacy database exports, or Latin-1 data from older systems.
When to use these tools
- Looking up the decimal or hex code for a specific character during debugging
- Escaping characters correctly as HTML entities in markup or templates
- Reading raw UART/serial output where bytes need to be mapped to printable characters
- Understanding why a sort is case-sensitive, or why a bitwise toggle changes letter case
- Identifying invisible control characters (tabs, line feeds, carriage returns) in data files